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Finding the Fourth Proportional to 354,954.12, 532,115.43 and 130,263.12

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Solution

The fourth proportional to 354,954.12, 532,115.43 and 130,263.12 is: 195,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,954.12 : 532,115.43 = 130,263.12 : x
  2. Step 2: Convert to fraction form
    354,954.12/532,115.43 = 130,263.12/x
  3. Step 3: Cross multiply
    354,954.12x = 532,115.43 × 130,263.12
  4. Step 4: Simplify right side
    354,954.12x = 69,315,015,623.45
  5. Step 5: Solve for x
    x = 69,315,015,623.45/354,954.12
  6. Step 6: Final answer
    x = 195,278.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.